Exercise devices – Involving user translation or physical simulation thereof – Treadmill for foot travel
Patent
1992-11-05
1994-04-12
Apley, Richard J.
Exercise devices
Involving user translation or physical simulation thereof
Treadmill for foot travel
482908, 198814, A63B 2202
Patent
active
053021622
ABSTRACT:
A treadmill (10) includes a frame (12) on which are rotatably mounted first and second roller assemblies (14, 16) on axles (40, 48) disposed on spaced apart transverse axes (42, 50). An endless belt (18) is trained about the roller assemblies. A ratcheting bolt assembly (52) is rotatably secured to the frame and is engaged with one end of the second roller assembly (16) to enable adjustment of the tension in the belt. The ratcheting bolt assembly has a threaded end portion (74) that is threadably engaged with one end of the axle on which the second roller assembly is mounted. The ratcheting bolt assembly includes a ratcheting head (80) that is graspable to rotate the adjustment bolt assembly for threadably advancing the axle on the threaded end portion of the adjustment bolt assembly, thereby changing the distance between the first and second roller assemblies and adjusting the tension in the belt. The ratcheting head ratchets on the adjustment bolt assembly to prevent an increase in the belt tension in excess of a predetermined maximum belt tension.
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Apley Richard J.
Mollo Jeanne M.
Precor Incorporated
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